Calculating Force Needed to Push Water Through a Hose

AI Thread Summary
To calculate the force required to push water through a hose, Bernoulli's equation is essential for determining the pressure difference between two points. The velocity remains constant due to the unchanged cross-sectional area of the tubing. The net pressure can be calculated using the formula PA=F, where P is the pressure and A is the area. To find the minimum force needed to push water vertically 40 cm through 5/16 inch tubing, convert all measurements to meters and calculate the pressure based on the height of the water column. Ultimately, understanding the relationship between pressure and force is crucial for this calculation.
Unlockitall
Messages
6
Reaction score
0
I was wondering if someone could tell me a formula for how much force is required to push water through a hose. I am going to try to figure out how much force is needed to push water vertically 40 cm through 5/16 inch tubing.
 
Physics news on Phys.org
You will need to use Bernoulli's equation to find the difference in pressure at the two points. Note that the velocity at both points is the same as the cross sectional area does not change. After you have the difference in pressure, that will give you the "net pressure". Now remember that PA=F. Net pressure you calculated and area is just pi * r^2.

Just make sure to convert the units into meters before you plug the numbers in.
 
Without information about how much velocity you want, the only calculation we can do is with height. I'll leave that pressure calculation to you...you should try to figure it out on your own, but we can help if you get stuck.
 
Im not trying to get any particular pressure. All I am trying to find is the least amount needed to force the water through and up.
 
Unlockitall said:
Im not trying to get any particular pressure. All I am trying to find is the least amount needed to force the water through and up.

Remember, F/A = P.

So if you find the pressure, you will find the force.
 
Calculate the weight of a column of water 1 square meter in area and 40cm high and you'll have the answer (in pascals).
 

Thread 'Is calling fictitious forces "not real" just about terminology?'

Hi there, im studying nanoscience at the university in Basel. Today I looked at the topic of intertial and non-inertial reference frames and the existence of fictitious forces. I understand that you call forces real in physics if they appear in interplay. Meaning that a force is real when there is the "actio" partner to the "reactio" partner. If this condition is not satisfied the force is not real. I also understand that if you specifically look at non-inertial reference frames you can...
View full post »

Thread 'Derivation of Hamilton's Principle: Questions'

I have recently been really interested in the derivation of Hamiltons Principle. On my research I found that with the term ##m \cdot \frac{d}{dt} (\frac{dr}{dt} \cdot \delta r) = 0## (1) one may derivate ##\delta \int (T - V) dt = 0## (2). The derivation itself I understood quiet good, but what I don't understand is where the equation (1) came from, because in my research it was just given and not derived from anywhere. Does anybody know where (1) comes from or why from it the...
View full post »

Similar threads

I Filling a pool with the hose end above or in the water
Replies
11
Views
3K
I Find Best Water Nozzle Type & Pressure for Longest Distance
Replies
32
Views
9K
B Water Wicking between two containers
Replies
2
Views
321
Force (Thrust) produced by a water pump at hose end
Replies
1
Views
6K
B Will there be water coming out of the last hole?
Replies
17
Views
1K
Rate of water flow into an immersed container
Replies
3
Views
2K
Rocket propulsion explained only through pressure differential
Replies
46
Views
5K
Force of pressurized water exiting a hose or pipe?
Replies
20
Views
10K
Measuring water pressure in long flexible tube.
Replies
9
Views
2K
Force on an object that is stationary in flowing water
Replies
12
Views
6K

Hot Threads

Recent Insights

Back
Top